Screw handle paintbrush



FIG. 1 is a front elevational view of the screw handle paintbrush showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is an enlarged top plan view thereof; and,

FIG. 6 is an enlarged bottom plan view thereof. 

The ornamental design for a screw handle paintbrush, as shown and described. 